@stan,
Thanks for pointing that out. Evidently I didn't pay enough attention to the differences between those two. The Witte type blinkers are much more elegant than the Wagner type btw.
Don't sweat the rivet counter mode; I love details like that and am a bit ashamed I failed to bluff myself into the steam engine lovers society :-D
But during my Sunday afternoon Wikipedia railroad journey I learnt a lot about British railroads, steam engines, blowback (the Flying Scotsman had an incident as recent as 2012, semaphores, etc.
And I had some time to spare: my wife was at the circuit assembly :-p
Oh but now I'm wondering what British blinker design would look like....Wikipedia here I come....